Allow <random>. Add cautionary note about xxx_distribution.

Allow <random>.  Add cautionary note about xxx_distribution.

BUG=none
TEST=none

Committed: https://crrev.com/cb5ed947cce7d6520d5a13e5ba0d1a1de934c151
Cr-Commit-Position: refs/heads/master@{#429488}

[Peter Kasting, 2016-10-31 21:23:17]

pkasting@chromium.org changed reviewers:
+ danakj@chromium.org

[Peter Kasting, 2016-10-31 21:23:18]

Here's a CL that implements my latest reply on the relevant discussion thread. 
WDYT?

[Peter Kasting, 2016-11-02 20:47:14]

Ping.

[danakj, 2016-11-02 22:54:55]

LGTM

[Peter Kasting, 2016-11-03 00:49:42]

The CQ bit was checked by pkasting@chromium.org

[commit-bot: I haz the power, 2016-11-03 00:50:09]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-03 00:59:37]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-11-03 01:03:37]

Description was changed from

==========
Allow <random>.  Add cautionary note about xxx_distribution.

BUG=none
TEST=none
==========

to

==========
Allow <random>.  Add cautionary note about xxx_distribution.

BUG=none
TEST=none

Committed: https://crrev.com/cb5ed947cce7d6520d5a13e5ba0d1a1de934c151
Cr-Commit-Position: refs/heads/master@{#429488}
==========

[commit-bot: I haz the power, 2016-11-03 01:03:38]

Patchset 3 (id:??) landed as
https://crrev.com/cb5ed947cce7d6520d5a13e5ba0d1a1de934c151
Cr-Commit-Position: refs/heads/master@{#429488}